.app-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.nav-body {
    background: #fff none repeat scroll 0 0;
    border-top: 2px solid #f70;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.4);
    height: 48px;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 2;
}

.app-nav .nav {
    float: left;
}

.app-nav .nav li {
    float: left
}

.app-nav .nav li a {
    display: block;
    height: 48px;
    padding: 0 15px;
    outline: 0;
    overflow: hidden;
    line-height: 48px;
    color: #333;
    text-align: center;
    font-size: 16px;
    transition: all .2s linear;
    -moz-transition: all .2s linear;
    -webkit-transition: all .2s linear;
    -o-transition: all .2s linear
}

.app-nav .nav li a i,
.app-nav .nav li a span {
    display: inline-block;
    vertical-align: middle;
    height: 30px;
    line-height: 30px
}

.app-nav .nav li a i {
    margin-right: 6px;
    text-align: center;
    font-size: 24px;
    display: none
}

.app-nav .nav li a:hover {
    color: #f70
}

.app-nav .nav li:nth-child(1) a i {
    display: inline-block
}

.app-nav .nav li.cur a {
    color: #f70
}

.grid-row {
    width: 1500px;
    position: relative;
    margin: auto;
    zoom: 1;
    transition: all .3s ease-out;
    -moz-transition: all .3s ease-out;
    -webkit-transition: all .3s ease-out;
    -o-transition: all .3s ease-out;
}